Loans - Loans Acquired (Details) - CVBK - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Loans
Outstanding principal balance	$ 39,578	$ 48,502
Carrying amount
Acquired Loans	31,905	38,709
Real estate - residential mortgage
Carrying amount
Acquired Loans	7,326	9,107
Commercial, financial and agricultural
Carrying amount
Acquired Loans	16,021	20,443
Equity lines
Carrying amount
Acquired Loans	8,555	9,153
Consumer
Carrying amount
Acquired Loans	3	6
PCI Loans
Loans
Outstanding principal balance	6,658	9,734
Carrying amount
Acquired Loans	578	1,835
PCI Loans | Real estate - residential mortgage
Carrying amount
Acquired Loans	110	284
PCI Loans | Commercial, financial and agricultural
Carrying amount
Acquired Loans	433	1,461
PCI Loans | Equity lines
Carrying amount
Acquired Loans	35	90
Purchased Performing Loans
Loans
Outstanding principal balance	32,920	38,768
Carrying amount
Acquired Loans	31,327	36,874
Purchased Performing Loans | Real estate - residential mortgage
Carrying amount
Acquired Loans	7,216	8,823
Purchased Performing Loans | Commercial, financial and agricultural
Carrying amount
Acquired Loans	15,588	18,982
Purchased Performing Loans | Equity lines
Carrying amount
Acquired Loans	8,520	9,063
Purchased Performing Loans | Consumer
Carrying amount
Acquired Loans	$ 3	$ 6